I've been using coinpot for quite time, I registered in 2017 and used it from time to time. When I saw the message, they will close, I tried to withdraw my coins. But to my surprise, all of my withdrawals were cancelled, as it states, I had viloated terms. I am no aware of any violation at all, so for me, after 3,5 years it is clear scam. Tried to get in touch with support, but no go, returned message, mailbox is full.
Shame it ended up like this, sayonara coinpot.